| Rami Malek | Elliot Alderson |
| Carly Chaikin | Darlene |
| Portia Doubleday | Angela Moss |
| Michael Cristofer | Phillip Price |
| Martin Wallström | Tyrell Wellick |
| Grace Gummer | Dominique DiPierro |
| BD Wong | Whiterose |
| Bobby Cannavale | Irving |
| Christian Slater | Mr. Robot |
| Sakina Jaffrey | Antara Nayar |
| Omar Metwally | Agent Santiago |
| Grant Chang | Grant
(voice) |
| Julia Crockett | Emily Moss |
| Rizwan Manji | Norm |
| Mabel Tyler | Young Angela |
| Aaron Ramey | Young Don Moss |
| Dave Morrissey Jr. | Bartender |
| Rafael Poueriet | Fireman |
| Olivia Khoshatefeh | Young Woman 1 |
| Maggie Wood | Young Woman 2 |
| Ian Campbell Dunn | Security Guard |
| D'Lo | Cab Driver
(as Dilan D'Lo Srijaerajah) |
| Tony Cheng | Dark Army Operative #1 |
| Alex Estrada | Computer Lab Employee |
| Junior Mendez | Dishwasher |
| Leslie Shenkel | Grandpa |
| Joe Gioco | Grandpa's Friend |
| Alix Elias | Elderly Lady #1 |
| Eileen Lacy | Elderly Lady #2 |
| Catherine Christon | Special Agent Jody Axenberg |
| Zachery Byrd | Employee #2 |
| Soledad O'Brien | New Anchor |
| Eric Orman | Masked Man |
| Shannon Breckenridge | Pedestrian /
E Corp Employee
(uncredited) |
| Roger Brenner | NYPD /
BombSquad /
K9Officer
(uncredited) |
| Michele Gambino | Gala Attendee
(uncredited) |
| Vincent Gao | Tech Employee
(uncredited) |
| Arielle Hoffman | Checkout Girl
(uncredited) |
| Jarrod LaBine | International Banker
(uncredited) |
| Michael Nagle | Gala Attendee
(uncredited) |
| Nathalie Rock | Mar-a-Lago Waitress
(uncredited) |
| Eric Rosenberg | Event Attendee
(uncredited) |
| Pete Spano | Protestor
(uncredited) |